/* ===== Next-Gen Symposium official branding ===== */
.brand-logo-shell{
    width:46px;height:46px;display:grid;place-items:center;overflow:hidden;flex:none;
    border:1px solid rgba(212,175,55,.42);border-radius:13px;background:#fff;
    box-shadow:0 0 20px rgba(212,175,55,.12)
}
.brand-logo-shell img{width:100%;height:100%;object-fit:contain;padding:2px}
.brand-copy strong{font-family:"Noto Sans Thai",sans-serif;font-size:13px;letter-spacing:0;color:#f0d471}
.brand-copy small{display:block;margin-top:2px;font:700 7px "Space Mono";letter-spacing:.14em;color:#8e91a5}

.branded-hero{
    min-height:100svh;display:block;padding-top:118px;padding-bottom:55px;
    overflow:hidden;position:relative
}
.branded-hero:before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background:
      radial-gradient(circle at 15% 32%,rgba(165,77,254,.14),transparent 33%),
      radial-gradient(circle at 76% 58%,rgba(212,175,55,.10),transparent 30%);
}
.branded-hero-grid{
    position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.06fr) minmax(390px,.94fr);
    align-items:center;gap:48px;min-height:calc(100svh - 175px)
}
.branded-hero-copy{text-align:left;max-width:760px}
.branded-hero .event-chip{margin:0}
.branded-hero .event-date{margin:22px 0 11px;font-size:10px}
.branded-hero h1{
    margin:0;font-family:"Noto Serif Thai",serif;font-size:clamp(54px,6vw,88px);
    line-height:.98;letter-spacing:-.045em
}
.branded-hero h1 span{display:block;color:#f2f0fa;text-shadow:0 8px 40px rgba(0,0,0,.22)}
.branded-hero h1 em{display:block;margin-top:10px;color:#e1b83d;font-style:normal;text-shadow:0 0 35px rgba(212,175,55,.17)}
.branded-event-title{margin:18px 0 0;color:#e4c661;font-weight:700;font-size:16px}
.branded-meta{
    display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:22px;color:#d5d7e3;font-size:13px
}
.branded-meta span{display:inline-flex;align-items:center;gap:7px}
.branded-meta i{width:4px;height:4px;border-radius:50%;background:var(--gold)}
.branded-hero .hero-lead{margin:22px 0 0;max-width:680px;font-size:16px;line-height:1.85}
.branded-hero .hero-actions{justify-content:flex-start;margin-top:28px}
.branded-feature-row{display:flex;gap:9px;flex-wrap:wrap;margin-top:28px}
.branded-feature-row span{
    padding:8px 11px;border:1px solid rgba(255,255,255,.09);border-radius:9px;
    background:rgba(8,11,27,.68);color:#c9cad7;font-size:10px
}
.branded-feature-row b{color:var(--gold);margin-right:5px}
.branded-hero-media{position:relative;min-width:0}
.branded-hero-frame{
    position:relative;aspect-ratio:.88;overflow:hidden;border-radius:28px;
    border:1px solid rgba(212,175,55,.22);background:#090c1d;
    box-shadow:0 30px 90px rgba(0,0,0,.36),0 0 45px rgba(165,77,254,.08)
}
.branded-hero-frame:after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background:linear-gradient(180deg,transparent 55%,rgba(2,4,15,.52)),
               linear-gradient(90deg,rgba(2,4,15,.12),transparent 30%)
}
.branded-hero-frame img{width:100%;height:100%;object-fit:cover;object-position:center;display:block}
.branded-hero-orbit{
    position:absolute;right:-35px;bottom:-30px;width:170px;height:170px;border-radius:50%;
    border:1px solid rgba(212,175,55,.19);box-shadow:0 0 50px rgba(212,175,55,.06);pointer-events:none
}
.branded-hero-orbit:before,.branded-hero-orbit:after{
    content:"";position:absolute;border-radius:50%;border:1px solid rgba(165,77,254,.18)
}
.branded-hero-orbit:before{inset:28px}.branded-hero-orbit:after{inset:58px}

/* ===== Admin branding ===== */
.branding-admin-shell{max-width:1280px;padding-top:120px;padding-bottom:45px;min-height:90vh}
.branding-page-head{align-items:center}.branding-head-actions{display:flex;gap:9px;flex-wrap:wrap}
.branding-loading{padding:40px;text-align:center;color:var(--muted)}
.branding-message{margin-bottom:14px}.branding-success{background:rgba(69,190,105,.08);border:1px solid rgba(69,190,105,.2);color:#b7dfc1}
.branding-grid{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(340px,.75fr);gap:14px;align-items:start}
.branding-editor-column,.branding-preview-column{display:grid;gap:14px}
.branding-card,.branding-live-preview,.branding-note-card{padding:20px;border-radius:18px}
.branding-card-head{display:flex;gap:12px;align-items:center;padding-bottom:15px;margin-bottom:16px;border-bottom:1px solid var(--line)}
.branding-step{width:38px;height:38px;display:grid;place-items:center;flex:none;border:1px solid rgba(212,175,55,.25);border-radius:11px;background:rgba(212,175,55,.06);font:700 9px "Space Mono";color:var(--gold)}
.branding-card-head small{display:block;font:700 7px "Space Mono";letter-spacing:.14em;color:#75798f}.branding-card-head h2{margin:3px 0 0;font-family:"Noto Serif Thai";font-size:18px}
.branding-logo-editor{display:grid;grid-template-columns:150px 1fr;gap:16px;align-items:stretch}
.branding-logo-preview{display:grid;place-items:center;min-height:150px;border:1px solid var(--line);border-radius:15px;background:#fff;overflow:hidden}
.branding-logo-preview img{width:100%;height:100%;object-fit:contain;padding:8px}
.branding-upload-box{display:flex;flex-direction:column;align-items:flex-start;gap:8px;padding:14px;border:1px dashed rgba(165,77,254,.24);border-radius:13px;background:rgba(165,77,254,.035)}
.branding-upload-box strong{font-size:11px}.branding-upload-box code{max-width:100%;overflow:hidden;text-overflow:ellipsis;color:#c8aef0;font-size:8px}.branding-upload-box p,.branding-upload-box small{margin:0;color:#76798c;font-size:8px;line-height:1.55}
.branding-upload-box input[type=file]{max-width:100%;color:#aaaec0;font-size:9px}
.hero-upload-box{margin-top:12px}.branding-hero-preview{overflow:hidden;border:1px solid rgba(212,175,55,.15);border-radius:17px;background:#070916;aspect-ratio:16/9}
.branding-hero-preview img{width:100%;height:100%;object-fit:cover;object-position:center 45%}.branding-no-image{height:100%;display:grid;place-items:center;font:700 9px "Space Mono";letter-spacing:.12em;color:#666a7d}
.branding-toggle-row{display:flex;align-items:center;gap:11px;margin-top:13px;cursor:pointer}.branding-toggle-row strong{display:block;font-size:10px}.branding-toggle-row small{display:block;color:var(--muted);font-size:8px;margin-top:3px}
.branding-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:11px}.branding-form-grid .full{grid-column:1/-1}
.branding-field{display:block}.branding-field>span{display:block;margin-bottom:6px;color:#c8cad9;font-size:9px;font-weight:600}
.branding-field input,.branding-field textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:#080b19;color:var(--text);outline:none;font:10px "Noto Sans Thai"}
.branding-field input:focus,.branding-field textarea:focus{border-color:rgba(212,175,55,.45);box-shadow:0 0 0 3px rgba(212,175,55,.05)}.branding-field textarea{resize:vertical;line-height:1.65}
.branding-preview-column{position:sticky;top:92px}.branding-preview-label{display:flex;justify-content:space-between;gap:10px;align-items:center;padding-bottom:11px;border-bottom:1px solid var(--line)}
.branding-preview-label span{font:700 8px "Space Mono";letter-spacing:.13em;color:var(--gold)}.branding-preview-label small{color:#6f7284;font-size:8px}
.branding-mini-navbar{display:flex;align-items:center;gap:8px;margin-top:14px;padding:9px;border:1px solid var(--line);border-radius:10px;background:#050713}
.branding-mini-logo{display:flex;align-items:center;gap:7px;margin-right:auto}.branding-mini-logo img{width:34px;height:34px;object-fit:contain;background:#fff;border-radius:8px}.branding-mini-logo b{display:block;font-size:8px;color:#e5cc78}.branding-mini-logo small{display:block;font:700 5px "Space Mono";color:#777b91}.branding-mini-navbar>i{width:23px;height:4px;border-radius:4px;background:#24283b}
.branding-mini-hero{display:grid;grid-template-columns:1.05fr .95fr;gap:10px;margin-top:10px;padding:14px;border:1px solid rgba(165,77,254,.15);border-radius:14px;background:radial-gradient(circle at 20% 25%,rgba(165,77,254,.12),transparent 35%),#050713;overflow:hidden}
.branding-mini-copy{min-width:0}.branding-mini-copy>small{display:block;font:700 5px "Space Mono";letter-spacing:.1em;color:#c9aaf4}.branding-mini-copy>b,.branding-mini-copy>strong{display:block;font-family:"Noto Serif Thai";line-height:1.08}.branding-mini-copy>b{margin-top:9px;font-size:18px}.branding-mini-copy>strong{font-size:21px;color:var(--gold)}.branding-mini-copy p{font-size:6px;line-height:1.5;color:#999cad}.branding-mini-copy>div{display:flex;gap:5px}.branding-mini-copy>div span{padding:5px 6px;border-radius:5px;background:var(--gold);color:#090a11;font-size:5px;font-weight:800}.branding-mini-copy>div span+span{background:transparent;color:#d5b94e;border:1px solid rgba(212,175,55,.4)}
.branding-mini-hero>img{width:100%;height:100%;min-height:150px;object-fit:cover;border-radius:10px}.branding-note-card>span{font:700 7px "Space Mono";letter-spacing:.13em;color:var(--gold)}.branding-note-card h3{margin:7px 0 6px;font-family:"Noto Serif Thai";font-size:16px}.branding-note-card p{margin:0 0 12px;color:#85889b;font-size:9px;line-height:1.7}
.branding-mobile-save{display:none;position:sticky;bottom:0;padding:10px 0 max(10px,env(safe-area-inset-bottom));background:linear-gradient(transparent,rgba(2,4,15,.96) 34%)}.branding-mobile-save .btn{width:100%}


@media(max-width:1440px) and (min-width:901px){
    .desktop-nav{gap:14px;font-size:12px}
    .brand{gap:8px}
    .brand-logo-shell{width:40px;height:40px}
    .brand-copy strong{font-size:11px}
    .brand-copy small{font-size:6px}
}

@media(max-width:1020px){
    .branded-hero-grid{grid-template-columns:1fr .78fr;gap:28px}
    .branding-grid{grid-template-columns:1fr}.branding-preview-column{position:static;grid-template-columns:1fr 1fr}.branding-live-preview{grid-column:1/-1}
}
@media(max-width:900px){
    .branded-hero{padding-top:96px}
    .branded-hero-grid{grid-template-columns:1fr;min-height:auto;gap:30px}
    .branded-hero-copy{text-align:center;margin-inline:auto}.branded-hero .hero-actions{justify-content:center}.branded-feature-row{justify-content:center}
    .branded-hero-frame{aspect-ratio:16/10;max-width:760px;margin-inline:auto}.branded-hero-frame img{object-position:center 42%}
}
@media(max-width:680px){
    .brand-logo-shell{width:38px;height:38px;border-radius:10px}.brand-copy strong{font-size:10px}.brand-copy small{font-size:6px}
    .branded-hero{padding-top:92px;padding-bottom:35px}.branded-hero-grid{gap:24px}.branded-hero .event-date{font-size:8px}
    .branded-hero h1{font-size:43px}.branded-event-title{font-size:13px}.branded-meta{justify-content:center;font-size:11px;gap:8px}
    .branded-hero .hero-lead{font-size:14px}.branded-feature-row span{font-size:9px}.branded-hero-frame{aspect-ratio:4/3;border-radius:20px}
    .branding-admin-shell{padding-top:96px}.branding-page-head{display:block}.branding-head-actions{margin-top:12px}.branding-head-actions .btn-primary{display:none}
    .branding-logo-editor{grid-template-columns:1fr}.branding-logo-preview{max-width:180px}.branding-form-grid{grid-template-columns:1fr}.branding-form-grid .full{grid-column:auto}
    .branding-preview-column{grid-template-columns:1fr}.branding-live-preview{grid-column:auto}.branding-mini-hero{grid-template-columns:1fr}.branding-mini-hero>img{min-height:220px}
    .branding-mobile-save{display:block}
}